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In AC (alternating current) generator, a coil of wire rotates in a magnetic field.
Which of the following would change the potential difference measured by the voltmeter in the system above?
Choose the correct option from the given ones:
Which of the following would change the potential difference measured by the voltmeter in the system above?
| (a) | use more turns of wire in the coil. |
| (b) | use thicker wire. |
| (c) | change the speed of rotation. |
Choose the correct option from the given ones:
| 1. | (c) only |
| 2. | (a), (b) and (c) |
| 3. | (a) and (b) only |
| 4. | (a) and (c) only |
Subtopic: Â AC Generator |
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